i have spark on #2,3,4 spark plugs but not on #1. i was trying to decide if it was just a bad coil or bad power pak. motor is 50hp merc that has a coil for each cylinder. i think its time to head to a mechanic because i dont have the equipment to test all this stuff. i would hate to buy a coil and that not be the problem. would it start of 3 cylinders or since it is #1 that cause it not to start. i think i am grasping at straws now. thanks for the help in advance.